Oxytocin increases trust in humans

@article{Kosfeld2005OxytocinIT,
  title={Oxytocin increases trust in humans},
  author={Michael Kosfeld and Markus Heinrichs and Paul J. Zak and Urs Fischbacher and Ernst Fehr},
  journal={Nature},
  year={2005},
  volume={435},
  pages={673-676}
}
Trust pervades human societies. Trust is indispensable in friendship, love, families and organizations, and plays a key role in economic exchange and politics. In the absence of trust among trading partners, market transactions break down. In the absence of trust in a country's institutions and leaders, political legitimacy breaks down. Much recent evidence indicates that trust contributes to economic, political and social success. Little is known, however, about the biological basis of trust… 
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References

SHOWING 1-10 OF 44 REFERENCES
Status and Distrust: The Relevance of Inequality and Betrayal Aversion
Trust is related to people's willingness to accept vulnerability, composed of their willingness to accept the risk of being worse off than if they had never trusted, the risk of being worse off than
Cellular Mechanisms of Social Attachment
TLDR
It is hypothesize that oxytocin and vasopressin may be facilitating affiliation and social attachment in monogamous species by modulating these reward pathways.
Oxytocin Receptor Distribution Reflects Social Organization in Monogamous and Polygamous Voles
  • L. Shapiro, T. Insel
  • Biology
    Proceedings of the National Academy of Sciences of the United States of America
  • 1992
TLDR
It is demonstrated that species from the genus Microtus (voles) selected for differences in social affiliation show contrasting patterns of oxytocin receptor expression in brain, and it is suggested that variable expression of the oxytocIn receptor in brain may be an important mechanism in evolution of species-typical Differences in social bonding and affiliative behavior.
Trust, Reciprocity, and Social History
Abstract We designed an experiment to study trust and reciprocity in an investment setting. This design controls for alternative explanations of behavior including repeat game reputation effects,
Does Social Capital Have an Economic Payoff? A Cross-Country Investigation
This paper presents evidence that "social capital" matters for measurable economic performance, using indicators of trust and civic norms from the World Values Surveys for a sample of 29 market
Trust, Risk and Betrayal
Using experiments, we examine whether the decision to trust a stranger in a one-shot interaction is equivalent to taking a risky bet, or if a trust decision entails an additional risk premium to
Neuroendocrine and emotional changes in the post-partum period.
As well as having widespread effects on many aspects of mammalian physiology, the hormones of both the reproductive and stress axes can directly and indirectly influence behavior. Here we review
Oxytocin Control of Maternal Behavior Regulation by Sex Steroids and Offspring Stimuli a
  • C. Pedersen
  • Biology, Psychology
    Annals of the New York Academy of Sciences
  • 1997
TLDR
This chapter focuses on the now overwhelming evidence that the neuropeptide oxytocin (OT) is centrally involved in activating MB at the appropriate time as well as on new evidence that OT may play a less essential but significant role in sustaining MB during lactation.
...
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